Confidence votes 210. Antigone is considered a tragic hero, because tragic heroes have several qualities: They are royal, they have a tragic flaw that leads to their downfall, they have an unhappy ending, and lastly the character is worthy of concern. First, Antigone is royalty. This is shown through her bloodline in several ways.
The down feathers of eider ducks provide insulation due to lack of barbules and ability to fluff. Infrared image of a goose, showing its insulating capacities. Down feather structure is important for insulating properties. Eiders insulate their arctic nests with down feathers. Click/tap images for attribution and license information.
Penguins use natural oils, secreted from a gland near the tail, to keep their feathers waterproof. This helps trap a layer of air near the skin which provides insulation to penguin warm in the water.When feathers come into contact with mineral oils they absorb it like a sponge, displacing the insulating air layer.Not only are the penguins then at risk of dying of hypothermia, their attempts to preen the oil off can poison them.his helps trap a layer of air near the skin which provides insulation to penguin warm in the water. When feathers come into contact with mineral oils they absorb it like a sponge, displacing the insulating air layer.